My '72 442 convertible has developed some problems with both door latching and locking. By eyeballing the situation, I suspect that 31-year old door hinges are allowing excessive door sag. Does anyone have experience with the door repair kits (new pivot pins and bushings) or complete new hinge assemblies, both of which are available? What were the results? Did you do it yourself or have a body shop do it? Removing a door is pretty scary sounding with a big heavy door.